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https://issues.apache.org/jira/browse/IGNITE-5593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16066127#comment-16066127
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ASF GitHub Bot commented on IGNITE-5593:
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GitHub user AMashenkov opened a pull request:
https://github.com/apache/ignite/pull/2210
IGNITE-5593: Affinity change message leak on massive topology updates
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gridgain/apache-ignite ignite-5593
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/ignite/pull/2210.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2210
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commit 52a5d4f7725609050fd64335369da7d123598d35
Author: Andrey V. Mashenkov <[email protected]>
Date: 2017-06-27T17:43:07Z
Fixed.
commit a69488397cbd3d2209f17fc9778237cd7d8d6b79
Author: Andrey V. Mashenkov <[email protected]>
Date: 2017-06-28T08:02:48Z
Minor.
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> Affinity change message leak on massive topology updates
> --------------------------------------------------------
>
> Key: IGNITE-5593
> URL: https://issues.apache.org/jira/browse/IGNITE-5593
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 1.7
> Reporter: Alexey Goncharuk
> Assignee: Andrew Mashenkov
> Priority: Critical
> Fix For: 2.1
>
>
> When late affinity assignment is enabled, we complete the exchange future
> with custom discovery event. Since discovery topology events usually are much
> faster than exchange futures completion, it is possible that a newly joined
> node can 'see' the affinity change messages that are related to previous
> topology versions when this node even was not present in the topology.
> When this message is received, an exchange future is created and this message
> is added to discoEvts list. However, this future never completes on this node
> because init() is never called. This means that this exchange future sits in
> the exchange set with the affinity change message.
> Since the number of topology changes (and, thus, messages) can be quite
> large, this leads to excessive memory consumption on the starting node. I've
> observed ~3Gb of heap wasted on one of the nodes when > 200 nodes were
> restarted.
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